Home / 2,531.09-3,491.42-1,585.21

Finding the Fourth Proportional to 2,531.09, 3,491.42 and 1,585.21

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Solution

The fourth proportional to 2,531.09, 3,491.42 and 1,585.21 is: 2,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.09 : 3,491.42 = 1,585.21 : x
  2. Step 2: Convert to fraction form
    2,531.09/3,491.42 = 1,585.21/x
  3. Step 3: Cross multiply
    2,531.09x = 3,491.42 × 1,585.21
  4. Step 4: Simplify right side
    2,531.09x = 5,534,633.90
  5. Step 5: Solve for x
    x = 5,534,633.90/2,531.09
  6. Step 6: Final answer
    x = 2,186.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.